Conjugation of "Swim" — All Forms, Examples, and Usage
To move through water using body movements.
Look up another verb
All 12 Tenses of "Swim"
Quick reference table — every tense form of "swim" with the first-person example and a link to the grammar guide for that tense.
| Tense | Example (I) | Quick rule |
|---|---|---|
| Simple Present | I swim |
Used for habits, facts, routines, and permanent situations. Full rule → |
| Simple Past | I swam |
Used for completed actions at a specific time in the past. Full rule → |
| Simple Future | I will swim |
Used for predictions, decisions made at the moment, and promises. Full rule → |
| Present Continuous | I am swimming |
Used for actions happening right now or temporary situations. Full rule → |
| Past Continuous | I was swimming |
Used for actions in progress at a specific moment in the past. Full rule → |
| Future Continuous | I will be swimming |
Used for actions that will be in progress at a specific future time. Full rule → |
| Present Perfect | I have swum |
Used for past actions with present relevance, life experiences, or unfinished situations. Full rule → |
| Past Perfect | I had swum |
Used for an action that was completed before another past action. Full rule → |
| Future Perfect | I will have swum |
Used for an action that will be completed before a specific future time. Full rule → |
| Present Perfect Continuous | I have been swimming |
Used for actions that started in the past and continue now, with focus on duration. Full rule → |
| Past Perfect Continuous | I had been swimming |
Used for ongoing actions in the past that continued up to another past moment. Full rule → |
| Future Perfect Continuous | I will have been swimming |
Used for actions that will have been ongoing up until a specific future time. Full rule → |
Past Tense of "Swim" — Swam
The past simple of "swim" is "swam". Use it for completed actions at a specific past time. Because "swim" is irregular, "swam" is not formed by adding -ed — you have to memorize this form. See our simple past tense guide for a deeper explanation of the simple past.
Past Participle of "Swim" — Swum
The past participle of "swim" is "swum". Use it after "have/has/had" for the perfect tenses ("I have swum"), and after "be" for passive constructions ("It was swum"). Because "swim" is irregular, "swum" is not the same as the past simple — students often confuse the two forms.
Is "Swim" Regular or Irregular?
"Swim" is an irregular English verb. Its principal parts are: base form "swim", past simple "swam", and past participle "swum". The 3rd-person singular present is "swims" and the present participle/gerund is "swimming". Conjugation pattern: sing-sang-sung type.
Conjugation pattern: sing-sang-sung type
How to Pronounce "Swim" and Its Forms
Swim: /swɪm/ — Stress pattern: O
Short 'i' vowel /ɪ/ as in 'sit', final 'm' clear and closed.
Common mispronunciation of "swim"
Avoid 'sweem' or 'swam' for present tense.
How to Use "Swim" — Common Grammar Patterns
Use swim for any purposeful water movement; avoid for accidental submersion.
S + swim + (location)S + can/will + swim
Example Sentences with "Swim" in Different Tenses
- Simple Present: I swim in the pool every morning. A1
Common Collocations with "Swim"
- swim in the pool — We swim in the pool every summer.
- swim fast — The Olympic athlete swims very fast.
- swim across — He swam across the river yesterday.
- go swimming — Let's go swimming this weekend.
- swim underwater — She can swim underwater for a long time.
When to Use "Swim" vs Similar Verbs
"swim" vs "float"
Float is passive, swim is active movement through water.
Smart synonyms — when to use each one
- paddle — casual movement in shallow water
- dive — jumping and plunging underwater sharply
- float — staying at surface without active movement
Common Mistakes with "Swim"
-
Wrong: She swim in the pool.
Correct: She swims in the pool.
Add "s" for third-person singular (she/he/it). -
Wrong: I am swim in the ocean.
Correct: I am swimming in the ocean.
Use present participle (swimming), not base form, with "am". -
Wrong: They swimmed yesterday.
Correct: They swam yesterday.
Past tense is "swam", not "swimmed".
Origin and Etymology of "Swim"
From Old English swimman, related to German schwimmen.
Other Forms of "Swim"
- Noun: swimmer
Conjugation Tables for "Swim"
Negative Forms
- Simple present: I do not swim · He does not swim
- Simple past: I did not swim · She did not swim
- Present perfect: I have not swum · He has not swum
Question Forms
- Simple present: Do you swim? · Does he swim?
- Simple past: Did you swim?
- Present perfect: Have you swum?
Passive Voice (where applicable)
- Simple present passive: It is swum
- Simple past passive: It was swum
- Present perfect passive: It has been swum
Frequently Asked Questions About "Swim"
- Is "swim" regular or irregular?
- "swim" is an irregular verb. Its past simple is "swam" and past participle is "swum". You must memorize these forms.
- What is the past tense of "swim"?
- The simple past of "swim" is "swam".
- What's the difference between the past simple and past participle of "swim"?
- The past simple is "swam" and the past participle is "swum". Use past simple for completed past actions ("I swam yesterday"). Use past participle with have/has ("I have swum").
- What's a common mistake with "swim"?
- Add "s" for third-person singular (she/he/it). Wrong: "She swim in the pool." Correct: "She swims in the pool."